Waveform

Abstract
Author	wonkey_monkey
Version	v2.0.2
Download	waveform2.0.2.zip
Category	Audio filters
License	GPLv2
Discussion	Doom9 Thread

Description

Waveform is a plugin to overlay audio waveforms on video clips - useful for identifying sync issues and audio glitches.

Waveform v2.0 is a rewrite of the older Waveform v0.3 plugin with the following improvements:

• Support for all AviSynth+ colourspaces
• Anti-aliased waveforms
• Fewer crashes, hopefully
• When using "zoom" it no longer looks like the waveform is clipping if it goes out of bounds
• Uses min/max of samples for a more accurate display of sample values
• The "window" parameter is no longer restricted to integer values

Requirements

• [x86]: AviSynth+ or AviSynth 2.6.0
• [x64]: AviSynth+
• Supported color formats: RGB24, RGB32, YUY2, YV12

Syntax and Parameters

Waveform (clip, float "window", float "height", float "zoom", bool "under", bool "smooth", bool "aa")

clip   =

Input clip; must contain audio and video.

float  window = 0

The number of frames either side to display a waveform for.

float  height = 0.333

• >=1 : height in pixels of waveform overlay
• <1 : total height of waveform display as a fraction of video height.

float  zoom = 1.0

Scale up the waveforms.

bool  under = false

Display the waveform underneath the video instead of superimposed on it.

bool  smooth = false

Smooth out waveforms.

bool  aa = true

Anti-aliasing.

Examples

Waveform with default values:

AviSource("blah.avi") # make sure clip has audio and video
Waveform(window=0, height=0.333, zoom=1.0, under=false, smooth=false, aa=true)

Changelog

Version      Date            Changes

v2.0.2       2022/11/13      - adds frame property pass-through support

v2.0.1       2022/03/02      - fixes a minor but potentially crash-causing bug with RGB24/32/48/68 formats

v2.0         2021/05/15      - v2.0 initial release

v0.3         2015/02/28      - new parameter: "marks"
                             - mitigate crash when "window" is set to high values

v0.2         2012/10/06      - commented out the function which uses vsprintf_s
                             - hopefully fixed those rowsize/pitch issues (but only for YV12/YUY2 so far)

v0.1         2012/08/19      - initial release

Archived Downloads

Version	Download	Mirror
v2.0.2	waveform2.0.2.zip	waveform2.0.2.zip
v2.0.1	waveform2.0.1.zip	waveform2.0.1.zip
v2.0	waveform2.0.zip	waveform2.0.zip
v0.3	waveform0.3.zip	waveform0.3.zip
v0.2	waveform0.2.zip	waveform0.2.zip

External Links

Doom9 Forum - Waveform v0.3 thread.

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